Telfast (Fexofenadine)

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Telfast is the brand name of Fexofenadine Hydrochloride. It is a prescription only antihistamine used to treat symptoms of seasonal allergic rhinitis, commonly referred to as Hayfever. Unlike many alternative antihistamines, Telfast (Fexofenadine) tablets are non-sedating and considered to be non-drowsy.

If you have tried alternative over-the-counter antihistamines and found them to be ineffective against treating allergy related symptoms, Fexofenadine 120mg tablets or Fexofenadine 180mg tablets may be an effective solution for you. Fexofenadine tablets can be used alongside nasal sprays and/or eye drops used to treat Hayfever associated symptoms.

Telfast tablets are also available in generic form, as Fexofenadine 120mg or Fexofendaine 180mg tablets, at Smart Chemist. Generic versions of Telfast tablets are bioequivalent, meaning they contain the same amount of the active ingredient (Fexofenadine) and work to the same standard, however they are cheaper in price. Buy Telfast tablets, or Fexofenadine tablets at Smart Chemist by simply completing our safe and confidential online medical assessment.

Do you suffer from mderate to severe hayfever? Telfast or Fexofenadine tablets may be an effective solution in treating your hayfever symptoms. You can buy Fexofenadine 120mg tablets and Fexofenadine 190mg tablets online at Smart Chemist. Speak to a member of our Pharmacy team for more information.

Patient information

*Always read the patient information leaflet before starting your treatment.

Why choose Fexofenadine (Telfast) tablets?

Allergic reactions happen when an allergen triggers an immune response in the body, resulting in the production of antibodies to fight off the specific allergen. These antibodies begin a cascade of events, one of which is the release of a chemical called histamine, a key component of any allergic reaction. Telfast or Fexofenadine tablets work to combat symptoms of allergic rhinitis (Hayfever), and other common allergies, by stopping the excessive release of histamine by the body in response to the allergen. This mean putting a stop to symptoms such as:

  • sneezing
  • a runny or blocked nose
  • red, itchy, watery eyes
  • wheezing and coughing
  • a red, itchy rash
  • worsening of asthma or eczema symptoms


Fexofenadine (telfast) tablets provide a fast and effective solution to regaining control over your allergies and your day-to-day life. Fexofenadine tablets have a fast onset of action, meaning they work quickly to provide you with symptomatic relief. Unlike other non-prescription antihistamines, Fexofenadine tablets are non-sedating, meaning there is less likelihood of you experiencing drowsiness as a side effect.

What dose should I choose?

The recommended starting dose of Fexofenadine (Telfast) tablets in accordance with the British National Formulary (BNF) is 120mg once daily.

Fexofenadine (Telfast) 120mg tablets are licensed for use in Adults 18 years or older.

How should I take Fexofenadine tablets?

Fexofenadine (telfast) tablets should be taken orally as a single dose, once daily. To be swallowed whole with a glass of water. Fexofenadine tablets can be taken with or after food or on an empty stomach. Where possible attempt to avoid drinking apple juice or orange juice whilst using Fexofenadine (telfast) tablets as both drinks may decrease its exposure and therefore its effectiveness.

Fexofenadine 120mg & 180mg tablets are not suitable for use in women during pregnancy or breast feeding.

Although considered to be a non-sedating non-drowsy antihistamine, Fexofenadine tablets may cause drowsiness in a very small percentage of users. Therefore, patients should be advised that it can occur and may affect performance of skilled tasks (e.g. cycling or driving); alcohol should also be avoided whilst using Fexofenadine (telfast) tablets.

How do Fexofenadine (telfast) tablets work?

Symptoms of seasonal allergic rhinitis, or Hayfever, are caused by the bodies release of the chemical histamine in response to its exposure to an antigen. Fexofenadine 120mg tablets work to combat the symptoms of an allergic reaction by preventing histamine release in the body.

What are the side effects of Fexofenadine 120mg tablets?

Side effects commonly associated with Fexofenadine (telfast) 120mg tablets include:

  • Headache
  • Blurred vision
  • Dry mouth
  • GI disturbances



For more information on the associated side effects of Fexofenadine (telfast) tablets please read the patient information leaflet provided or contact your GP. Alternatively, you can speak to a member of our Pharmacy team.